package planner.service;

import planner.domain.User;
import planner.exception.UserDuplicateException;
import planner.exception.UserNotExistException;

public interface UserService {
	void join(User user) throws UserDuplicateException;
	boolean isUserValid(User user) throws UserNotExistException;
	boolean isExistUser(User user);
	User getUser(User user);
}
